Topic: ln list of topics
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8 items are filed under this topic.

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	Solving with the Natural Log		2008-07-28
		From CB: I am trying to solve lnx +3ln2 = ln 2/x. Every way I've tried when I go to plug in the solution it doesn't come out right. Answered by Penny Nom.
	y = log(x) + x. Solve for x.		2005-08-26
		From Alain: I have the following equation: y = ln(x) + x How do I solve for x? Answered by Penny Nom.
	ln(hx+n)		2005-01-07
		From Anibal: if I have the eq. y=hx+n and I want to know ln(y), how do I process ln(hx+n)? Answered by Penny Nom.
	R= 5.3lnx + x.		2003-05-11
		From A student: Reaction R to a dose x is given by: R= 5.3lnx + x. For a certain drug, R must not exceed 21. Show that a dose between 8 and 12 units satisfies this requirement & find, correct to 5 decimal places, the greates value of x which satisfies this condition? Answered by Harley Weston.
	Three algebra problems		1999-12-28
		From Stephanie Branton: If P represents the product of all prime numbers less than 1000, what is the value of the unit's digit of P? Do any real numbers a and b exist such that: ln(a+b)=ln a + ln b? if so, what are they? Define a function by: f(x)=1/1-x where x is not equal to 0,1. what is f(f(f(a)))? Answered by Harley Weston.
	Two derivatives		1999-11-16
		From Gina Renicker: The derivative of: y=e(xlnx) and y=x2arctan(x1/2) Answered by Harley Weston.
	Area of a circle and an inequality		1999-10-30
		From Adam Anderson: I have two problems. The first: prove that the area of a cirlce is pi times radius squared without using calculus. The second: show that ln(x) < x - 1 for all x > 0. Answered by Harley Weston.
	ln(x+3)+ln(x+2)=ln(x+11)		1999-11-24
		From Thibault Portevin: "Résolvez l'équation : ln(x+3)+ln(x+2)=ln(x+11)" Je suis bloqué, pourriez-vous m'aider? Answered by Claude Tardif.

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